Home / 13,761.80-20,642.78-3,373.56

Finding the Fourth Proportional to 13,761.80, 20,642.78 and 3,373.56

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Solution

The fourth proportional to 13,761.80, 20,642.78 and 3,373.56 is: 5,060.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.80 : 20,642.78 = 3,373.56 : x
  2. Step 2: Convert to fraction form
    13,761.80/20,642.78 = 3,373.56/x
  3. Step 3: Cross multiply
    13,761.80x = 20,642.78 × 3,373.56
  4. Step 4: Simplify right side
    13,761.80x = 69,639,656.90
  5. Step 5: Solve for x
    x = 69,639,656.90/13,761.80
  6. Step 6: Final answer
    x = 5,060.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.